Expected duration: less than 1 week I am looking for a highly capable freelancer to reverse engineer the check digit algorithm in a barcode formula.
I will provide full details via PPH messages, however please be informed that me and my team have been stuck on this problem for a few weeks - it is not a simple solution following any traditional check digit alg such as UPC or EAN. It's possible the alg used is inspired by UPC/EAN, so I would like to work with someone with experience in check digit calculation and/or barcodes.
I have a list of barcodes which work (i.e. have the correct check digit), however currently the only method to find the correct check digit is to test 0-9 manually which won't work long-term. Again, I will provide details if you are suited to the project.
If a solution is found it can be delivered via code in any language or as pseudocode. Python is preferred.
--
The proposed approach:
I send full details of the formula including working examples
The freelancer messages me if they find a solution
I send the freelancer a few barcodes to apply their alg to and they respond with the check digit
I test the barcode with the check digit to confirm it works
Organize and Fix TikTok Business Accounts Category: Account Management, Advertising, Digital Marketing, Google Adwords, Internet Marketing, Marketing, Social Media Management, TikTok Budget: $10 - $30 USD
21-Aug-2025 03:52 GMT
Promotional Short Film Creation Category: Cinematography, Creative Writing, Film Production, Script Writing, Video Editing, Video Production, Video Services, Videography Budget: $30 - $250 AUD
Post 50 Land Sale Ads Category: Advertising, Content Writing, Copywriting, Data Entry, Excel, Facebook Marketing, Market Research, SEO Writing, Social Media Management, Social Media Marketing Budget: $2 - $8 USD
Video Ads Sales Campaign Category: Advertising, Digital Marketing, Facebook Ads, Facebook Marketing, Google Adwords, Instagram Marketing, Internet Marketing, Sales, Social Media Marketing, Video Ads Budget: ₹1500 - ₹12500 INR
21-Aug-2025 03:48 GMT
4K Relaxing Nature Videos Category: After Effects, Animation, Cinematography, Color Grading, Drone Photography, Video Editing, Video Production, Video Services Budget: ₹1500 - ₹12500 INR
